I’ve seen a lace version of one of these light vests, an attractive look for a party.
And a hoodie version (see new Kwik Sew 3838) would fit in well round here.

Not a vest, but new Butterick 5563 has many ways of adding an interesting drapey layer.

– – –

3. Thigh length loose tunic with less drapey vest

Less drapey vests are often layered over a thigh length loose tunic-dress, perhaps with ‘peasant’ (gathered raglan) neckline. (Paysanne sounds more glamorous, but it’s just French for peasant.) This neckline is a current romantic / boho look.

Most pattern catalogues have something in peasant style. But many patterns are close to ‘off the shoulder’ – not what you want in mid-winter ! unless you’re wearing it over a turtle (UK polo) neck.
If you want the neckline closer to your neck, lengthen the front, back and sleeve sections above the armhole.

If you use a lightweight fabric that doesn’t bulk up when gathered, you can make a much looser style. Simply add a few inches down the mid-length of front, back and sleeves.

On the other hand, if you don’t like a lot of fullness, a partially gathered neckline such as Vogue 8650 could be a good compromise.

– – –

Vests to wear with the long loose tunics

These thigh length loose tunics are usually combined with less drapey vests, two styles in particular.

A long classic shape, worn 2-4 inches/ 5-10 cm shorter than the top it’s layered over, perhaps slim with a little waist shaping. McCall’s 2260 View B could be a starting point for lengthening.

Or a bolero (a good base for quilting and embellishment). I thought a bolero vest was an obvious style, but can’t find a Big 4 pattern. There are several patterns for bolero jackets. Remember you need a low armhole to be comfortable over a raglan sleeve.

Yes Ruth – I look terrible in all tailored styles, but some people look marvellous in them. At least that means there’s a whole group of sewing skills I don’t need 😀 I do wear some vest styles a lot in winter. I think the best vest shape and length for each person depends on body shape and personal style.